Banks Power Ford Trucks: (Diesel ’99 - 03 7.3L Power Stroke) Power Systems- Big Hoss Bundles '99-03 F-250 & F-350 User Manual

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the ground tab is still in place at
the lower mounting point. Reattach
the wiring harness to the EcU and
tighten the retaining bolt. Be careful
that all the pins are aligned correctly,
as it is possible to bend the pins of
the EcU and do permanent damage!
Reconnect the batteries.

86.

Find, supplied in the kit, the

black wire with a ring terminal on
one side and a male “fast-on” blade
terminal on the other. Install the red
“t-tap” connector on the center wire
of the MAP sensor as far from the
sensor as possible. Pull the wire out
of the convoluted plastic tube near
the top of the firewall and squeeze
the t-tap onto the wire with pliers.
See Figure

13

. Attach one end of the

black wire to the t-tap and the ring
terminal end to the ground strap lug
on the firewall.

87.

check the operation of the Big

Hoss Module and EcU. The vehicle
may not start if the coating on the
EcU connector is not completely
removed or if there is a mismatch of
codes. A quick indication of module
connections that are not cleaned
properly is that the “Wait to Start”
indicator will fail to light and the
“Check Engine” warning indicator will
stay lit after the key is switched on. If
the engine fails to start, re-clean the
ECU connector, reinstall the module
and try again. If the problem persists,
contact customer service at Gale
Banks Engineering to confirm that
the EcU and Big Hoss Module codes
match.

88.

Start the engine and allow

it to warm up. Drive the vehicle,
listening for any exhaust leaks or

rattles. Adjust and tighten clamps
or reposition the piping if required.
When positioning of piping is
finalized, it is a good practice to place
tack welds at any slip joints in the
exhaust system to prevent slippage.

NOTE: The exhaust may smoke
slightly after initial startup. This is
normal and will go away shortly
as the grease used in the bending
process burns off the inside of the
piping.

89.

Observe operation of the

boost and pyrometer gauges while
driving under varying conditions.
Turbocharger boost pressure
fluctuates as a function of load and
rpm. The engine produces lower
boost while cruising at light throttle.
Maximum boost occurs while
climbing hills and heavily loaded

Figure 11

9 6 5 7 7 v . 2 . 0

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